@Calvin Lin
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By your response I thought what you have thought about me. So
I request you not to judge me on my age coz I m still 14 although it is showing 22.
I do hope there will not be any clashes in b/w us in the future.
I m also sorry for being rude to you and I too hope you feeling the same way.
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Skanda Prasad
·
2 years, 6 months ago

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@Skanda Prasad
–
Oh, I was being literal because you asked for a positive response :)

No worries. On Brilliant, because the problems are much harder than what one would normally encounter, it is very common for mistakes / misconceptions to occur. The important thing is to learn from the mistakes and understand why you had made them, and how to avoid them in future.

No one is exempt from making mistakes, me included. I have had posted numerous problems where I got corrected by the community. For example, I had a problem in which I made numerous mistakes which let to all kinds of wrong conclusions. @brian charlesworth came along and helped me fix the problem, which led to this gem.

In fact, I do not know of any avid problem creator who has not had at least one valid report submitted against his problem. Eventually, they get fixed, and the community appreciates their efforts.
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Calvin Lin
Staff
·
2 years, 6 months ago

Oh Skanda , I happened to see this problem click here. The answer to this problem is wrong , infact Jon Hausmann has given proof to prove it false. I saw that you are one of its solvers.I am very curious to know its method. Can you explain to me how you arrived at this answer? That would be helpful .. thanks!
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Nihar Mahajan
·
2 years, 5 months ago

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Comment deleted
Apr 10, 2015

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@Skanda Prasad
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Since its too easy for you , it may be easy for you to post a solution or explain your approach.Kindly post a solution here or at the question itself. @Calvin Lin his solution may help us. Thanks!
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Nihar Mahajan
·
2 years, 5 months ago

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@Nihar Mahajan
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I am asking you in a very controlled temper... Who deleted my last comment???

Since it is deleted, I am not going to give any solution...
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Skanda Prasad
·
2 years, 5 months ago

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@Skanda Prasad
–
Also , there is a possibility that you may have deleted your own comment and pretending as if someone deleted it.And you are making this fact as a reason to not give a solution , because you indeed cannot give a solution... Nice method of fooling someone.
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Nihar Mahajan
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2 years, 5 months ago

@Calvin Lin
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I had posted 2 comments, one of them was deleted by me... the other one got deleted of its own accord
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Skanda Prasad
·
2 years, 5 months ago

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@Skanda Prasad
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My records indicate that there was only 1 comment (deleted by Skanda) posted between Nihar's 2 initial comments above (see screenshot below). It is possible that Skanda thought the comment was posted, but for whatever reason, it was not. This should be the end of the discussion (about deleted comments).

In any case, I would appreciate if Skanda can post a solution to that problem.

@Calvin Lin
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Sir , I am damn sure that he would not be able to post a solution , because he didn't solve it , he obtained the answer by cheating. Also , he could have realized that the problem has faults , and he might have written a report , if in indeed he had solved that problem.
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Nihar Mahajan
·
2 years, 5 months ago

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@Nihar Mahajan
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You already know that I am not able to report any problem... There is something wrong with my system, or the internet or with brilliant.
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Skanda Prasad
·
2 years, 5 months ago

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@Skanda Prasad
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This is also a lie.... Even if you are convincing us that you cannot report a problem , you might have posted in calvins message board about the flaw of that question like you did for @Pi Han Goh 's problem of \(\pi\) (pi).But you did not do even that which means , you are lying again.
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Nihar Mahajan
·
2 years, 5 months ago

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@Nihar Mahajan
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For your kindest information, I have already posted that and I have also told that I do not know how to click a screenshot so that Calvin could troubleshoot it.

@Nihar Mahajan
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I am not sitting on BRILLIANT to convince people like yourselves, I you want to believe me, then well and good, and if not then you have made your choice...
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Skanda Prasad
·
2 years, 5 months ago

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@Skanda Prasad
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How can I believe you? @Calvin Lin 's records clearly indicate that you are a 'cheater' and a 'lier'. Also you cannot provide solution to a problem which you solved 'too easily'. which means you did't solve that problem by yourselves and you got the answer by cheating!
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Nihar Mahajan
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2 years, 5 months ago

@Skanda Prasad
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But how can you solve a 'wrong' question? That question is geometrically wrong and there is a proof which proves it wrong. Do you deserve points for a wrong answer of a wrong problem?
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Nihar Mahajan
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2 years, 5 months ago

@Skanda Prasad
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The uppermost grade is 'A' in our school. There is no system of 'A1 or A+' in our school. Well don't estimate one's intellect by his school grades because school grades tell us the memory of a child and not the understanding.
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Nihar Mahajan
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2 years, 5 months ago

@Skanda Prasad
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If you want to convince yourself , come to my school and ask the school staff. You will get answer answer as 'A'. You are a liar and a cheater, don't put blame on others.
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Nihar Mahajan
·
2 years, 5 months ago

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@Nihar Mahajan
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The same way, you come here and check my computer.
you are a liar and a cheater, stop putting the blame on others...
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Skanda Prasad
·
2 years, 5 months ago

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@Skanda Prasad
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Calvin has given the proof that you are utterfoolish, cheater , liar.And there is no need to come there , since Calvin has already proved you are lying. Better shut your untruthful mouth , you are a hazard for the brilliant community.
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Nihar Mahajan
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2 years, 5 months ago

@Skanda Prasad
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You are saying 'Don't believe the truth' So you believe in 'lie things and rumours'? I think you will never succeed in life with such bad thinking. You are still to be taught basic moral values...
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Nihar Mahajan
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2 years, 5 months ago

6) Finally copy the URL in to the curved brackets and click post or preview to see it in GREENS! For example, I've made a link to your Sound-2 problem, click here
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Sravanth Chebrolu
·
2 years, 6 months ago

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With reference to your problem and problem, here is the proof that in any cyclic hexagon, \( \angle A + \angle C + \angle E = 360 ^ \circ \). It is independent of BDF being an equilateral triangle, which is not stated in the question, and cannot be used as an assumption in the problem.

I do not abuse the power of being staff. Note that Jon Haussmann's dispute echoes mine. I have stated out the reasons for why your problem was deleted. Specifically, the 2 issues are:

In your question you did not state that \(DEF\) is an equilateral triangle, as such that cannot be used in the solution. It is an unwarranted assumption, and hence a solution of "Let's assume this fact" is not a correct solution.

There are multiple ways to prove a fact. It is not reasonable to use MCQ to say "You can only prove this problem in this certain way". For example, I could have used a lot of parallel lines to show that the sum of those angles is 180, instead of using triangle \(BFD \).

As such, the answer of "By construction proving triangle is equilateral and then by cyclic quadilateral property" is not correct because it is a false statement.
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Calvin Lin
Staff
·
2 years, 6 months ago

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@Calvin Lin
–
I am 100 % sure that it is accurate question and with a valid answer.
As you would have noticed, I have posted my solution.
If you prove that it is wrong, I will also stop posting this question again and again.
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Skanda Prasad
·
2 years, 6 months ago

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@Calvin Lin
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If you do not know to solve in this way then please see the solution given below.

By construction, OB=OD=OF.

If you use a little of your brains, you might understand that BDF is now an equilateral triangle,
by the isosceles triangle property of triangles OFD, OBD and OBF.

Hence all angles are equal in the triangle BDF as OB, OF, OD are the radii of the circle.

@Calvin Lin
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If you have any confusion with the fig. then pls check my problem known as " Geometrically Brain teasing Problem by Skanda Prasad" where you will get the fig. and clear the confusions, if you had had any....
Thank You Sir !!!!
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Skanda Prasad
·
2 years, 6 months ago

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@Skanda Prasad
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I have seen the figure. It has not implied that BDF is an equilateral triangle.

Unless, the figure is trying to say that Angles A , C ,E are equal, in which case that should be clearly stated in the problem. And if so, then ABCDEF is a regular hexagon, and so there are 2 possible answers to your problem.
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Calvin Lin
Staff
·
2 years, 6 months ago

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@Calvin Lin
–
You have asked me for the proof and I have given it to you.
Consider the quadrilateral DBAF after proving BDF is an equilateral traingle.
as angle BDF = 60 degrees, angle BAF = 120 degrees

@Calvin Lin
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I have also said that OD is "also" the radii of the circle.
But the figure you have given does not have OD as radii. Does it ? Sir ???
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Skanda Prasad
·
2 years, 6 months ago

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@Skanda Prasad
–
B, D, F are points on the circumference, so OB, OD, OF are all radii of the circle. So yes, OD is a radii. It is just not drawn in as yet.
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Calvin Lin
Staff
·
2 years, 6 months ago

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@Calvin Lin
–
I was just surfing in your message board.
You had changed a person's age.....
Is it possible for mine too, Sir??
Could you please change it as 14 from 22 ??
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Skanda Prasad
·
2 years, 6 months ago

In the same way we can take the triangles OBF
OB=OF
Hence angle OBF=OFB

angle OFD+OFB=angle DFB

HENCE angles BDF = BFD =
DBF (in the same way)
AS ALL ANGLES IN A TRIANGLE ARE EQUAL, THEIR SIDES ARE EQUAL AND HENCEFORTH CONSIDERED TO BE AN EQUILATERAL TRIANGLE.
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Skanda Prasad
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2 years, 6 months ago

@Calvin Lin
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Sir pls donot make and post meaningless figures, just talk about mine.
there was a hexagon in which the triangle is enclosed.

I m completely sure that my solution was correct and "meaningful"
I donot wish continue this arguement, or whatever you might call it.....

THANK YOU FOR YOUR CO-OPERATION AND SUGGESTION,
YOU ARE VERY BRAINY, INTELLIGENT, AND I AM AN ILLITERATE FELLOW WHO DOES'NT KNOWS TO READ............ HAPPY ??
PLEASE LEAVE ME ALONE AND I DO NOT EXPECT ANY MORE COMMENTS ON THE PROBLEMS I POST.
PLEASE STOP DELETING PROBLEMS WHICH "YOU" DONOT LIKE,
PEOPLE MIGHT HAVE POSTED WITH A MEANING ONLY AND NOT JUST FOR FUN.........

I dont give a damn about Jon Houseman or whoever he is... that is very unessential for me....

@Sravanth Chebrolu
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Oh! This one! I tried to solve it long ago.....
But unfortunately I got it wrong.... Ha Ha !! Never mind.......
I thought that in 2 and a 1/2 hours, there are two COMPLETE hours so I clicked '2'.
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Skanda Prasad
·
2 years, 6 months ago